Step-by-step explanation:
Divide 20 by 50. Whatever answer you get multiply it by 12.
the question does not present the options, but this
does not interfere with the resolution
Let
x------> the length of the swimming pool
y------> the width of the swimming pool
we know that
x=12 ft
y=12-t
the distance between Mike and Ryan is equal to the distance of the diagonal of the rectangular swimming pool
D is the diagonal
D=32 ft-----> D²=32²----> equation 1
D²=x²+y²---> D²=12²+(12-t)²-----> equation 2
equate equation 1 and equation 2
32²=12²+(12-t)²------> 1024=144+(144-24t+t²)
t²-24t-736=0-----> this equation can be used to calculate the values of t
the answer is
the equation t²-24t-736=0
can be used to calculate the values of t
Answer:
4
Step-by-step explanation:
1. if the mass of coffee worth $10 is 'x', then its worth is 10x, and the worth of the mixture is 5(x+20);
2. using the previous item it is possible to write the next equation:
5(x+20)=4*20+10*x; ⇒ x=4.
3. the required mass is 4 pounds.
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